Sahih Bukhari | Volume 7 | Hadith Number 514

Allah's Apostle drank milk and then rinsed his mouth and said, "It contains fat. The Prophet added: I was raised to the Lote Tree and saw four rivers, two of which were coming out and two going in. Those which were coming out were the Nile and the Euphrates, and those which were going in were two rivers in paradise. Then I was given three bowls, one containing milk, and another containing honey, and a third containing wine. I took the bowl containing milk and drank it. It was said to me, "You and your followers will be on the right path (of Islam)."